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Shane Bradt 1 , Wayne Wurtsbaugh 2 , David Naftz 3 , Timothy Moore 1 , James Haney 1

Phytoplankton monitoring in the Great Salt Lake (Utah, USA) using a combination of satellite and on-lake remote sensing. Shane Bradt 1 , Wayne Wurtsbaugh 2 , David Naftz 3 , Timothy Moore 1 , James Haney 1. 1 University of New Hampshire, Durham, NH, USA

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Shane Bradt 1 , Wayne Wurtsbaugh 2 , David Naftz 3 , Timothy Moore 1 , James Haney 1

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  1. Phytoplankton monitoring in the Great Salt Lake (Utah, USA) using a combination of satellite and on-lake remote sensing Shane Bradt1, Wayne Wurtsbaugh2, David Naftz3, Timothy Moore1, James Haney1 1University of New Hampshire, Durham, NH, USA 2Utah State University, Logan, UT, USA 3United States Geological Survey, Salt Lake City, UT, USA

  2. 1.2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

  3. 1. 2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

  4. Bear River Causeway Causeway Farmington Bay Gunnison Bay Gilbert Bay Salt Lake City 10 km

  5. Eutrophication --Ecology --Anoxia --Cyanotoxins --Artemia..? Nodularia bloom in Farmington Bay

  6. 2005-2006Study Objectives • Understand spatial dynamics of phytoplankton populations of the Great Salt Lake • Assess impact of Farmington Bay eutrophication on larger Great Salt Lake

  7. Limnology -Extracted chlorophyll -Secchi disk -In vivo fluoresence (Chl a, Phc) -Salinity -Nitrogen fixation -Phytoplankton -Zooplankton

  8. Remote sensing -MODIS imagery -On-lake reflectance -Extraction chlorophyll -CDOM

  9. TOTAL STATIONS 116 May 31–June 3, 2005 42 stations May 17-May 21, 2006 29 stations June 20-23, 2006 29 stations Nov 29-Dec 2, 2006 16 stations

  10. TOTAL STATIONS 116 TOTAL SPECTRA 51 May 31–June 3, 2005 42 stations – 18 spectra May 17-May 21, 2006 29 stations – 25 spectra June 20-23, 2006 29 stations – 0 spectra Nov 29-Dec 2, 2006 16 stations – 8 spectra

  11. May 2005 10 km

  12. 1.2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

  13. 8 May 05 13 May 05 18 May 05 26 May 05 2 Jun 05 7 Jun 05 9 Jun 05 14 Jun 05 17 Jun 05 Pigment data from lake collections MODIS “standard” Chl algorithm Great Salt Lake specific Chl algorithm

  14. Synoptic surveys, 53 points

  15. USGS monthly sampling sites

  16. Monthly samples, 23 points

  17. 1.2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

  18. 2006 Apr May Jun Jul Aug Sep Oct Nov Dec

  19. 2006 Apr May Jun Jul Aug Sep Oct Nov Dec

  20. 2006 Apr May Jun Jul Aug Sep Oct Nov Dec

  21. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  22. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  23. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  24. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  25. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  26. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  27. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  28. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  29. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  30. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  31. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  32. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  33. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  34. 2006 Chlorophyll a (ug/L) Jul 1 Jun 5 Jun 7 Jun 9 Jun 11 Jun 13 Jun 15 Jun 17 Jun 19 Jun 21 Jun 23 Jun 25 Jun 27 Jun 29

  35. Next steps… Chlorophyll detection on the GSL Test GSL MODIS algorithm on other years Look at other satellite options MODIS land team, other MODIS algorithms, MERIS Use spectra to develop new algorithms bottom influence on signal phycocyanins - cyanobacteria Future applications of RS method Great Salt Lake use chlorophyll maps with Artemia populations use chlorophyll maps with hydrological modeling Other Saline Lakes…

  36. Funding: • United States Geological Survey • Utah State University • Utah Division of Wildlife Resources • Central Davis Sewer Improvement District Project Lake Watch (NSF) • New Hampshire Space Grant Consortium • We would also like to thank: • UNH: Janet Campbell, Mark Dowell • USU: Phillip Brown, Andrew, Johnson, • Ashley Nielson, Sonja Raub, Kris Bell, Amy Marcarelli • USGS: Terry Kenney, David Allen, Cory Angeroth • CALMIT: Bryan Leavitt, Giorgio Dall’Olmo • Creighton: John Schalles

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